The Frequency of ABO Blood Groups among Patients with Denture Stomatitis

Statement of the problem: Recent studies have shown a relation between some ABO blood types and increased susceptibility to fungal infections. Purpose: The aim of this study was to determine the frequency of blood groups in patients with denture stomatitis. Materials and Methods: In this descriptive cross-sectional study, diagnosis of denture stomatitis in ۱۰۰ patients with complete denture, was made by direct clinical examination and confirmed by staining of samples. Blood groups were determined by direct agglutination method, using monoclonal antibodies against human A and B blood antigens. Data were analyzed by student t.test with p< ۰/۰۵ as the limit of significance. Results: Among ۱۰۰ patients (۵۳ males, ۴۷ females) included in this study, the frequency of blood group O was (۵۳%), group A (۱۷%), group B (۱۸%) and group AB (۱۲%). The frequency of blood group O had the highest frequency in patients with Denture Stomatitis in comparison with other blood groups (p<۰.۰۵). Conclusion: Blood group O might be considered as a predisposing factor for denture related candidiasis.